Emission control system implementing reduction agent injection

Details Emission control system implementing reduction agent injection Emission control system implementing reduction agent injection

2011-08-09

2011-08-09

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S295000, C060S299000, C060S301000, C060S303000

Reexamination Certificate

active

07992380

ABSTRACT:
An emissions control system is disclosed. The emissions control system may have a power source that creates a flow of exhaust, an SCR catalyst situated to receive the flow of exhaust, and an injector configured to inject a reduction agent into the flow of exhaust in the presence of the SCR catalyst. The emissions control system may further have a controller configured to calculate a spatially dependent surface coverage of the reduction agent on the SCR catalyst and substantially stop injection of the reduction agent when the spatially dependent surface coverage of the reduction agent exceeds a maximum surface coverage of the reduction agent at one or more spatial locations.

REFERENCES:
patent: 4314345 (1982-02-01), Shiraishi et al.
patent: 5833932 (1998-11-01), Schmelz
patent: 6125629 (2000-10-01), Patchett
patent: 6415602 (2002-07-01), Patchett et al.
patent: 6446430 (2002-09-01), Roth et al.
patent: 6536210 (2003-03-01), Komoriya et al.
patent: 6662553 (2003-12-01), Patchett et al.
patent: 6681565 (2004-01-01), Russell
patent: 6732507 (2004-05-01), Stanglmaier et al.
patent: 6823660 (2004-11-01), Minami
patent: 6826906 (2004-12-01), Kakwani et al.
patent: 6871489 (2005-03-01), Tumati et al.
patent: 6871490 (2005-03-01), Liang et al.
patent: 6882929 (2005-04-01), Liang et al.
patent: 6928806 (2005-07-01), Tennison et al.
patent: 6996975 (2006-02-01), Radhamohan et al.
patent: 7005116 (2006-02-01), Schäfer-Sindlinger et al.
patent: 7055313 (2006-06-01), Russell
patent: 7065958 (2006-06-01), Funk et al.
patent: 7150145 (2006-12-01), Patchett et al.
patent: 7155331 (2006-12-01), Zhang et al.
patent: 7168947 (2007-01-01), Zamansky et al.
patent: 7200990 (2007-04-01), Gabrielsson et al.
patent: 2004/0093856 (2004-05-01), Dingle et al.
patent: 2006/0042234 (2006-03-01), Song et al.
patent: 2006/0045801 (2006-03-01), Boyden et al.
patent: 2006/0047366 (2006-03-01), Boyden et al.
patent: 2006/0086080 (2006-04-01), Katogi et al.
patent: 2006/0196285 (2006-09-01), Steen et al.
patent: 2007/0042495 (2007-02-01), Pavlova-MacKinnon et al.
patent: WO 2006/021748 (2006-03-01), None
Schar et al., “Control of a Urea SCR Catalytic Converter System for a Mobile Heavy Duty Diesel Engine,” SAE International, 2003-01-0776, Mar. 3-6, 2003, 11 pages.
Schar et al., “Mean,Value Model of the SCR System of a Mobile Application,” IFAC, 15˜ Triennial World Congress, Barcelona, Spain, 2002, 6 pages.
Schär et al., “Mean-Value Model of the SCR System of a Mobile Application,” IFAC, 15thTriennial World Congress, Barcelona, Spain, 2002, 6 pages.
Schär et al., “Control of a Urea SCR Catalytic Converter System for a Mobile Heavy Duty Diesel Engine,” SAE International, 2003-01-0776, Mar. 3-6, 2003, 11 pages.
Schär et al., “Control-Oriented Model of an SCR Catalytic Converter System,” SAE International, 2004-01-0153, Mar. 8-11, 2004, 14 pages.
Chi et al., “Modeling and Control of a Urea-SCR Aftertreatment System,” SAE International, 2005-01-0966, Apr. 11-14, 2005, 18 pages.
Willems et al., “Is Closed-Loop SCR Control Required to Meet Future Emission Targets?” SAE International, 2007-01-1574, Apr. 16-19, 2007, 13 pages.
U.S. Appl. No. 11/882,218, filed Jul. 31, 2007, “SCR Emissions Control System,” pp. 1-16, Figs. 1-2.
U.S. Appl. No. 11/892,132, filed Aug. 20, 2007, “Control of SCR System Having a Filtering Device,” pp. 1-16, Figs. 1-4.

Affiliated with

Also associated with

Rating

Emission control system implementing reduction agent injection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Emission control system implementing reduction agent injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emission control system implementing reduction agent injection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2669184